195 lines
14 KiB
XML
195 lines
14 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.46.32823" ID-GBIF-Dataset="e546c2a6-4668-4253-b2e2-b462f23dab8c" ID-PMC="PMC6379322" ID-Pensoft-Pub="1314-4049-46-1" ID-PubMed="30787668" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1314-4049-46-1" ModsDocOrigin="MycoKeys 46" ModsDocTitle="The genus Hebeloma in the Rocky Mountain Alpine Zone" checkinTime="1555333436509" checkinUser="pensoft" docAuthor="Cripps, Cathy L., Eberhardt, Ursula, Schuetz, Nicole, Beker, Henry J., Vera S. Evenson, & Horak, Egon" docDate="2019" docId="E5F31D31A4F62C1842E6DF0683413BB9" docLanguage="en" docName="MycoKeys 46: 1-54" docOrigin="MycoKeys 46" docSource="http://dx.doi.org/10.3897/mycokeys.46.32823" docTitle="Hebeloma nigellum Bruchet, Bull. Mens. Soc. Linn. Lyon 39 (6 suppl.): 126 1970" docType="treatment" docVersion="4" lastPageNumber="39" masterDocId="AC18AA047D78FFBFD06BFFFDFF948577" masterDocTitle="The genus Hebeloma in the Rocky Mountain Alpine Zone" masterLastPageNumber="54" masterPageNumber="1" pageNumber="39" updateTime="1668136151891" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>The genus Hebeloma in the Rocky Mountain Alpine Zone</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Cripps, Cathy L.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Eberhardt, Ursula</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Schuetz, Nicole</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Beker, Henry J.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Vera S. Evenson,</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Horak, Egon</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>MycoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2019</mods:date>
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<mods:detail type="volume">
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<mods:number>46</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>54</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/mycokeys.46.32823</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/mycokeys.46.32823</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-46-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="156202100" LSID="urn:lsid:plazi:treatment:E5F31D31A4F62C1842E6DF0683413BB9" httpUri="http://treatment.plazi.org/id/E5F31D31A4F62C1842E6DF0683413BB9" lastPageNumber="39" pageId="38" pageNumber="39">
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<subSubSection pageId="38" pageNumber="39" type="nomenclature">
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<paragraph pageId="38" pageNumber="39">
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<pageBreakToken pageId="38" pageNumber="39" start="start">15</pageBreakToken>
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.
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<taxonomicName authority="Bruchet, Bull. Mens. Soc. Linn. Lyon 39 (6 suppl.): 126 (1970)" class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma nigellum" order="Agaricales" pageId="38" pageNumber="39" phylum="Basidiomycota" rank="species" species="nigellum">Hebeloma nigellum Bruchet, Bull. Mens. Soc. Linn. Lyon 39 (6 suppl.): 126 (1970)</taxonomicName>
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Figures 6A, 21, 23 (15)
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</paragraph>
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</subSubSection>
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<subSubSection pageId="38" pageNumber="39" type="etymology">
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<paragraph pageId="38" pageNumber="39">Etymology.</paragraph>
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<paragraph pageId="38" pageNumber="39">From nigellus, meaning blackish for the dark pileus.</paragraph>
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</subSubSection>
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<subSubSection pageId="38" pageNumber="39" type="description">
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<paragraph pageId="38" pageNumber="39">Description.</paragraph>
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<paragraph pageId="38" pageNumber="39">
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Cortina present. Pileus 8-20 mm in diameter, broadly convex to hemispherical to almost plane with a small umbo, greasy, smooth or slightly fibrous, in center dark date brown, chocolate brown, or blackish brown, at margin paler even to cream, appearing two-toned, with hoary sheen, glazed-looking, not hygrophanous; margin inrolled at first, then even (not rimose). Lamellae emarginate, even with a tooth, normally spaced, L = 24-32 with lamellulae, whitish, then pale milk coffee, pale brown, paleness persisting; edges floccose. Stipe 15-50
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<normalizedToken originalValue="×">x</normalizedToken>
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1.5-4 mm, long and slim, equal, undulating a bit, pale dingy whitish in top half darkening to black brown at base, pruinose at apex, below silky-shiny, smooth to fibrillose. Context dingy whitish, darkening to brownish at base, rubbery in stipe. Odor raphanoid. Exsiccate: pileus small, two-toned, center dark brown, outwards cream; lamellae brown, red-brown; stipe long and very thin, cream, dark at base.
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</paragraph>
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<paragraph pageId="38" pageNumber="39">
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Basidiospores yellowish brown, amygdaliform, a few ellipsoid in certain view, no/slight snout, no big apiculus, slightly rough (O1, O2), perispore occasionally observed loosening very slightly (P0, P1), usually distinctly dextrinoid (D2, D3), not guttulate, 10-14.5
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<normalizedToken originalValue="×">x</normalizedToken>
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6-8
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, on average 11.9
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<normalizedToken originalValue="×">x</normalizedToken>
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7.2
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, Q = 1.6. Basidia 27-40
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<normalizedToken originalValue="×">x</normalizedToken>
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7.58-10.5
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, sterigma 2-3
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, clavate, mainly four-spored. Cheilocystidia lageniform, more or less swollen at the base, top half cylindrical, some apical thickening, some septate, 30-80
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<normalizedToken originalValue="×">x</normalizedToken>
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3.5-6.5
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<normalizedToken originalValue="µm">µm</normalizedToken>
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at apex, 3.5-6
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<normalizedToken originalValue="µm">µm</normalizedToken>
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in middle, 6.5-12.5
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<normalizedToken originalValue="µm">µm</normalizedToken>
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at base. Pleurocystidia absent. Epicutis thickness 40-75
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, with no encrusted hyphae recorded.
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</paragraph>
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<caption pageId="38" pageNumber="39">
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<paragraph pageId="38" pageNumber="39">
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Figure 21.
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<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma nigellum" order="Agaricales" pageId="38" pageNumber="39" phylum="Basidiomycota" rank="species" species="nigellum">Hebeloma nigellum</taxonomicName>
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, CLC3614b and CLC1420.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="38" pageNumber="39" type="rocky mountain ecology">
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<paragraph pageId="38" pageNumber="39">Rocky Mountain ecology.</paragraph>
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<paragraph pageId="38" pageNumber="39">
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Alpine mostly near
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<taxonomicName class="Magnoliopsida" family="Salicaceae" genus="Salix" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Salix planifolia" order="Malpighiales" pageId="38" pageNumber="39" phylum="Tracheophyta" rank="species" species="planifolia">Salix planifolia</taxonomicName>
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and in moss; reported from Colorado and Montana.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="38" pageNumber="39" type="materials_examined">
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<paragraph pageId="38" pageNumber="39">Rocky Mountain specimens examined.</paragraph>
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<paragraph pageId="38" pageNumber="39">
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U.S.A. COLORADO: San Juan County, San Juan Mountains, Engineer Pass, in
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<taxonomicName class="Magnoliopsida" family="Salicaceae" genus="Salix" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Salix planifolia" order="Malpighiales" pageId="38" pageNumber="39" phylum="Tracheophyta" rank="species" species="planifolia">Salix planifolia</taxonomicName>
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, 30 July 2000, CLC1420 (MONT), C. Cripps; Cinnamon Pass, in
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<taxonomicName class="Ascidiacea" family="Polycitoridae" genus="Salix" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Salix" order="Aplousobranchia" pageId="38" pageNumber="39" phylum="Chordata" rank="genus">Salix</taxonomicName>
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spp., 10 Aug 2001, CLC1707 (MONT), C. Cripps. MONTANA: Beartooth Plateau, Frozen Lakes: at 3200 m in moss near
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<taxonomicName lsidName="S. planifolia" pageId="38" pageNumber="39" rank="species" species="planifolia">S. planifolia</taxonomicName>
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, 21 Aug 2001, CLC1778 (MONT), C. Cripps; N Pass, with
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<taxonomicName lsidName="S. planifolia" pageId="38" pageNumber="39" rank="species" species="planifolia">S. planifolia</taxonomicName>
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, 9 Aug 1998, ZT6425 (ETH), E. Horak; Billings Fen, in moss near
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<taxonomicName lsidName="S. planifolia" pageId="38" pageNumber="39" rank="species" species="planifolia">S. planifolia</taxonomicName>
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, 23 Aug 2017, CLC3614b (MONT), C. Cripps.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="38" pageNumber="39" type="discussion">
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<paragraph pageId="38" pageNumber="39">Discussion.</paragraph>
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<paragraph pageId="38" pageNumber="39">
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According to
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<bibRefCitation pageId="38" pageNumber="39">Beker et al. (2016)</bibRefCitation>
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,
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<taxonomicName lsidName="H. nigellum" pageId="38" pageNumber="39" rank="species" species="nigellum">H. nigellum</taxonomicName>
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is paraphyletic in the ITS region, but monophyletic and bootstrap supported in multi-locus analyses. The corresponding network is in Figure 6A.
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<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma nigellum" order="Agaricales" pageId="38" pageNumber="39" phylum="Basidiomycota" rank="species" species="nigellum">Hebeloma nigellum</taxonomicName>
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is similar in its variabiltiy within the Rocky Mountains (1-7 [0-1] bp differences based on 5 sequences when compared with the random selection of 11 sequences from the FE dataset (0-8 [0-3] bp). As discussed above,
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<taxonomicName lsidName="H. nigellum" pageId="38" pageNumber="39" rank="species" species="nigellum">H. nigellum</taxonomicName>
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is close to and not always distinguishable from
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<taxonomicName lsidName="H. hygrophilum" pageId="38" pageNumber="39" rank="species" species="hygrophilum">H. hygrophilum</taxonomicName>
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by ITS sequence. Another arctic and alpine species is
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<taxonomicName lsidName="H. spetsbergense" pageId="38" pageNumber="39" rank="species" species="spetsbergense">H. spetsbergense</taxonomicName>
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(discussed below) that cannot be distinguished from
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<taxonomicName lsidName="H. nigellum" pageId="38" pageNumber="39" rank="species" species="nigellum">H. nigellum</taxonomicName>
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by ITS sequence either.
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</paragraph>
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<paragraph pageId="38" pageNumber="39">
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<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma nigellum" order="Agaricales" pageId="38" pageNumber="39" phylum="Basidiomycota" rank="species" species="nigellum">Hebeloma nigellum</taxonomicName>
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is a small, slim species with a dark-centered pileus and rather large, dextrinoid, amygdaliform spores. It is widespread across northern Europe, not only in arctic-alpine habitats, and is reported from alpine and arctic habitats in Canada, Greenland, Iceland, Svalbard and the European Alps (
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<bibRefCitation pageId="38" pageNumber="39">Beker et al. 2016</bibRefCitation>
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,
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<bibRefCitation pageId="38" pageNumber="39">2018</bibRefCitation>
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). In molecular and morphological features it is close to
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<taxonomicName lsidName="H. hygrophilum" pageId="38" pageNumber="39" rank="species" species="hygrophilum">H. hygrophilum</taxonomicName>
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(which normally associates with
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<taxonomicName class="Ascidiacea" family="Polycitoridae" genus="Salix" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Salix" order="Aplousobranchia" pageId="38" pageNumber="39" phylum="Chordata" rank="genus">Salix</taxonomicName>
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in non-arctic-alpine habitats).
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<taxonomicName class="Agaricomycetes" family="Hymenogastraceae" genus="Hebeloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hebeloma kuehneri" order="Agaricales" pageId="38" pageNumber="39" phylum="Basidiomycota" rank="species" species="kuehneri">Hebeloma kuehneri</taxonomicName>
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Bruchet, a commonly reported arctic-alpine species, was described in the same paper as
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<taxonomicName lsidName="H. nigellum" pageId="38" pageNumber="39" rank="species" species="nigellum">H. nigellum</taxonomicName>
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with the main differentiation being that the former has more brownish coloration and the latter more blackish tones (
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<bibRefCitation pageId="38" pageNumber="39">Bruchet 1970</bibRefCitation>
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); a distinction that could not be supported by other lines of evidence. The holotype of
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<taxonomicName lsidName="H. kuehneri" pageId="38" pageNumber="39" rank="species" species="kuehneri">H. kuehneri</taxonomicName>
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was lost, however, and a new lectotype (selected from the paratypes) has been established (
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<bibRefCitation pageId="38" pageNumber="39">Beker et al. 2016</bibRefCitation>
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; LY BR66-15); it is sequenced and is a molecular match to
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<taxonomicName lsidName="H. nigellum" pageId="38" pageNumber="39" rank="species" species="nigellum">H. nigellum</taxonomicName>
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. We here follow
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<bibRefCitation pageId="38" pageNumber="39">Beker et al. (2016)</bibRefCitation>
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in selecting the name
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<taxonomicName lsidName="H. nigellum" pageId="38" pageNumber="39" rank="species" species="nigellum">H. nigellum</taxonomicName>
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over
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<taxonomicName lsidName="H. kuehneri" pageId="38" pageNumber="39" rank="species" species="kuehneri">H. kuehneri</taxonomicName>
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for this species.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |